Welt-attaching apparatus.



.G. GODDU.

WELT ATTAGHING APPARATUS.

APPLIOATIQN FILED JAN-.29, 1912.

1 ,048, 1 49 n Patented Dec. 24, 1912.

UNITED STATES PATENT, oFFroE.

- GEORGE GODDU, 0F WINCHESTER, -MASSACIUSETTS, ASSIGNOR TO UNITEDiSI-IOEMACHINERY COMPANY, y0F PATERSON, NEW JERSEY, A CORPORATION O'Fy NEWJERSEY.

WELT-ATTACHING APPARATUS.

Specification of Letters Patent.

, Patented Dee. 24, 1912.

Application led January 29, 1912. 4Serial Nh.i 674,015.

To all whom it ma/y concern.'

Be it known that I, GEORGE GoDDU, a citizen of the UnitedStates,-residing at Winchester, in the county of Middlesex and Stat-e ofMassachusetts, have invented certain Improvements in Welt-AttachingApparatus,

of whichthe following description, in con,

nection with the accompanying drawings, is a. specification, likereference characters on the drawings indicating like parts in theseveral figures.

This invention relates to machines for attaching welts, rands andsimilar strips of r'material to stock in the manufacture of boo-ts andshoes and isherein shown as em bodied in a machine for securingsuccessive portions of the strip by separate metallic fasteningsinserted at successive operations.

Although the invention is essentially an improvement in` anorganizedmachine for attaching welts to stock andl its general `object is toimprove such machines with respect to co-nvenience of operation and alsoyto improve theproduct of the machines, it willl `ticularly when thewelt is attached to a sole for the purpose of thickening the Vedge ofthe sole. Owing totheqrelatively great width of the welt when comparedwith its thickness, diilicultyhas been experienced in bending the weltedgewise to make it conform to the curvature ofthe sharply curved partsof the shoe, particularly at the toe. In Imy. prior Patents Nos.896,293, granted August 18, 1908 and 970,702, grantedSept.

20, 1910, I have `disclosedwelt attaching,

means comprising means which maybe actuated at the will of the operatorto slit those portions of the vwelt which it -is desired to bend to thekcurvature of the sharply curvedr parts of the "shoe.- These slits areformed in oneedge ofthe welt, preferably, of course, in the edge whichis tobe upon'the inside of a curve, andare preferably inclined so thatthe partswill pass one another readily as the lwelt is curved.

Although the welty attaching machines shown in my prior patents havefacilitated the attachment of a welt to the sharply curved portions of ashoe and have conse-y quently impro-ved shoes upon which they are usedboth injappearance and wearing qualities, difliculty has beenexperiencedy in obtainingthe best results owing to the organization ofthe machines. iThis diiiiculty has arisen from the fact that the slitsin the welt are so inclined that as the slitted welt passes to theattaching mechanism thek over'- hanging portion is attached to the solefirst, whereby t-he succeeding tongue, as the welt vis curved, must betucked under the said overhanging portion. y This sometimes results 1nundesirable puckers in the regions of the slits. i

Ap particular object of thepresent inven-` tio-n is to improve theorganizationof the machiney in this respect and so t-o'construct andarrange the slitting mechanism with respectto the'attaching mechanismthat the overhanging po-rtionformed by the yslit will extend in thedirection of thefeed of the work, whereby this overhanging portion, asthe welt is curved, will ride up over the preceding'attached portion,thus leaving the 4finished work substantially smooth.

Other objects and features of the invention willtbe apparent when thefollowing description and claims are considered yin connection with theaccompanying drawings, in which,- n

Figure 1 is a front elevation of a portion of a machine for attachingwelts having embodied therein the improvements of this invention; andFig. 2 is a perspective detail illustrating particularly theconstruction of the slitting mechanism and the modeof op` eration ofthemachine.

The welt attaching machine in which the invention. is embodied issubstantially of well-known construction, the fastening form.

ing and 'inserting mechanism being shown morefully in United StatesLetters Patent to Louis Goddu, No. 490,625, dated J an. 24,

18,93, and the `work support and feeding. table being shown" more fullyinyUnited .States LettersPatent to L. A. Casgrain, No.

611,405, Adated Sept. 27, 1898. For a-complete ydescription of theseparts reference may be had to the saidLetters Patent.

For the purposes of this description it is sufficient to indicate thatthe driver 4 operates in the nose 2 and is carried by a driver bar 6.The stationary cutter is indicated at T and the movable cutter iscarried by a lever 8. The feed wheel 16 operates upon the work 17carried upon the feed table 18, the feed table 18 being supported by therod 20 vertically movable in a guide 22. These parts, with the exceptionof the nose 2, are of substantially the same construction as thecorresponding parts of the Letters Patent above referred to.

The welt slitting mechanism is carried by a bracket 24 bolted to themachine frame. livoted upon a stud Q6 which is attached to the bracketis a knife carrying lever 28, the hub of said lever being confinedbetween the bracket and a washer Q9 upon the stud Q6. A spring 30engaging at one end a pin on the stud Q6 and at its other end entering ahole in the hub of the lever 28 holds said lever yieldingly in suchposition that ashoul` der on said lever abuts against a stop 32 formedupon the bracket. The slitting knife 340 is adjustably confined in agroove in the lower end of the lever 28 by means of a set screw 36 and aclamp plate 38. The arm of the lever in which the groove is formed is sobent that the knife is inclined to the plane of the welt with the end ofits cutting edge which is nearer the attaching mechanism higher than theend which is remote therefrom. The knife is adapted to slit the weltfrom the edge inward and the slitsl are formed in the manner shown inFig. 2 so that the lips of the slit override the preceding attachedtongues.

The welt supporting table 68 of the welt guiding portion of the slittingmechanism is provided with a groove to receive the knife 340 whereby theknife will slit the welt so that the slits will extend through it fromtop to bottom. A clamping member 720 pressed down by a spring 82 clampsthe welt for the slitting operation, this member being so shaped at itsforward end that the forwardly projecting lips of the slits will travelfreely under it. To prevent these projecting lips from catching againstthe nose 2 of the fastening inserting mechanism, the nose is providedwith a lip laying projection 100. The other arm of the lever 28 has abearing stud 40 arranged to be received in a slot in a link 44 by whichthe lever is oscillated about the stud 26. The link 44 may be lifted outof operative relation to the stud 40 by a lifting arm 48 attached to arock-shaft 50 having an operating handle 54, the rock-shaft 50 beingpressed into engagement with one of its bearings by a spring 52. At itsother end the link 44 is pivotally connected to the lower end of a lever56, the lever 56 being pivotally connected at its upper end to themachine frame. A spring-pressed plunger 62 mounted in a socket in thelower end of the lever 56 bears upon the link 44 and tends Alever 8 isconfined in a slot 66 in the lever 56 and serves to transmit the motionof tho cutter carrying lever to the lever 56.

The operation of t-he machine may be briefly described as follows: Thestock 1T, to which the welt lV is to be attached, is laid upon the table18 and the welt, which has been previously threaded through the guidingportion of the slitting mechanism, is placed upon the stock with itsouter edge lying beneath the feed wheel 16. lf the welt is to beattached first to a straight portion of the stock the crank 54 is movedto the right in Fig. 1 so that the lifting arm 48 raises the slot in thelink 44 above the sto-p 40 and holds it in this position. As the curvedportion of the stock approaches the inserting mechanism, the operatorwill move the crank 54 to the left when he sees that the portion of thewelt which is tobe attach ed to this curved portion of the stock islying in position to be operated upon by the slitting knife and the link44 will be pressed downward by the spring plunger 62, thus causing theslot in the link to drop over the stop 40. Then the parts are in thisposition the oscillations of the cutter carrying lever 8 will betransmitted to the knife lever 28 through the connecting lever 56. Theknife 340 will thus be oscillated with each fastening forming operationand the welt will be provided with a slit for each fastening inserted.The distance apart of the slits will obviously be thesame as thedistance apart of the fastenings so that each tongue will be providedwith an attaching fastening. As the welt passes to the insertingmechanism a fastening will be driven through each tongue and as the workis turned to cause the welt to conform to the curvature of the edge ofthe work and to bring the edge into proper position beneath theinserting mechanism, the forwardly projecting lip upon thesucceedingtongue will ride over the preceding attached tongue. The widthof the welt therefore which must be bent laterally against the internaltension of the welt material will be comparatively small. The appearanceof the attached welt is shown especially in Fig. 2 of the drawings. Whenthe straight portion of the stock again approaches the insertingmechanism the operator will swing the crank 54 back toward the right inFig. 1 and the slitting mechanism will be thrown out of operation again.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is 1. In a machine of the classdescribed, the i means being so constructed and so arranged with respectto the attaching means that it operates at the Will of the operator toform slits in the inner margin of the Welt so inclined that in securingthe Welt to the stock by successive operations each slit portion will,before being secured, override the 4portion immediately in front of itthat has already been attached to the stock.Y

2. In a machine of the class described, the

combination With means for attaching a Welt to stock, of controllableslitting means constructed to operate inl such manner and so ingfastening inserting mechanism, feed mechanism and Weltslittingmechanism, in combination with an actuator moving continuously in agiven path, and means for shifting said path to bring said actuator intooperative relation to said slitting mechanism.

4. A' machine of the vclass described having fastening insertingmechanism including an oscillating member, feed mechanism and normallyinoperativey Welt slitting mechanism in combination with an actuatorconnected With said oscillating member and moved thereby in a givenpath, and means for shifting said path to bring said actuator intooperative relation to said slitting mechanism.v

Ink testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses. f

y GEORGE connu. Witnesses:

BENJ. B. BLANCHARD, NORMAN C. HUssEY.

Copies of th'is patent may be obtained for ve cents each, by addressingthe Commissioner of atents,

Washington, D. C.

